874 



EXPERIMENT STATION RECORD. 



[Vol. 40 



and oat straw, with Johnson grass substituted for the latter toward the end of 

 the period. The more pertinent data are assembled in the following table: 



Comparison of concentrates for fattening steers. 



Year 

 and lot. 



Concentrates fed. 



Dura- 

 tion of 

 test. 



Feed consumed per pound of gain . 



Initial Average 



weight daily Cotto 

 per gain per seed 



prod- 

 uct. 



head. 



head. 



Corn 

 grain. 



Corn 



Feed 



cost per 



Hav or R "^ 

 straw of e^" 



1914-15. 



1 

 2 

 3 



1915-1 & 

 1 

 2 

 3 



Cottonseed meal 



Cold-pressed cake 



Cottonseed meal; corn-and- 

 cob meal 



Cottonseed meal 



Cottonseed meal ; ear corn . . 



Cottonseed meal; shelled 



com 



Days. 

 123 

 123 



123 



111 

 111 



141 



Lbs. 

 863 



865 



824 



sa 



Lbs. 

 2.04 

 2.01 



2.05 



1.56 



i n 



Lbs. 

 3.25 

 5.02 



2.49 



3. 66 

 I. si 



1.77 



Lbs. 



1.25 



4.57 

 3.55 



Lbs. 

 19.7 

 15.4 



19.3 



25.0 

 23. 4 



22.6 



Lbi. 

 0.71 

 .73 



.75 



3.10 

 1.73 



2.05 



Cts. 



7.0 

 6.8 



7.8 



9.5 

 10.8 



10.7 



Cold-pressed cottonseed cake was charged at $16.50, and cottonseed meal the 

 first year at $22.50 and the second year at .$27 per ton. The charge for corn was 

 70 cents per bushel, and for silage $3, for eowpea hay $10, and for oat straw $5 

 per ton. 



Three lbs. of cottonseed meal proved to be equal in feeding value to 4 lbs. of 

 cold-pressed cottonseed cake. The meal was 40.4 per cent protein and the cake 

 27.0 per cent. The cake was much relished. Note is made of an earlier study 

 ( E. S. R., 25, p. 73) of cold-pressed cake fed to steers fattened on pasture In the 

 South. 



In the first year cottonseed meal and corn-and-cob meal (2:1) did not prove 

 economical. In the second year, however, it is concluded that if the l"ts receiv- 

 ing cottonseed meal and ear cum 1 1 : 2) and cottonseed meal and shelled corn 

 (1:2). respectively, are each credited with $3 worth of pork, they paid for the 

 corn and then made about as much profit as the lot receiving cottonseed meal 

 alone. 



in both years all lots were well finished and very uniform. Data on shrinkage 

 und dressing weights are given. 



"This test clearly establishes the fact that the farmer having a surplus of 

 corn and farm roughages can market them at a handsome price through steers 

 of good quality, when properly purchased, and at the same time retain the fer- 

 tilizing elements of the feeds on the farm in the form of manure." 



Corn supplements and substitutes for fattening lambs, K. Dinn and J. M. 

 Kvv.vrd (Iowa tita. Bui. 1S5 (1919), pp. S-14).— From a group of 17J range 

 lambs, 5 lots of 30 each were selected and fed for 82 days, beginning November 

 16, 1917, for the purpose (1) of testing linseed meal, velvet bean feed meal, and 

 peanut meal as protein supplements to a basal ration of shelled corn, corn silage, 

 and alfalfa hay, and (2) of determining the value of corn gluten feed as a 

 partial substitute for corn in such a basal ration without supplement. 



The main results from the control lot and the three lots fed supplements are 

 given in the subjoined table. The supplements were fed scattered over the 

 silage in amounts so adjusted that each of the latter lots received equal amounts 

 of protein from this source. The other feeds were given according to appetite. 



